"When a train is single-tracked, it means that the other train has to sit and wait for the other train to clear before it can move, and eventually, it just backs up," said MTA spokeswoman Paulette Austrich.

MTA officials encourage people to check the MTA website or the informational phone line all morning long to get details on their routes. That number is 410-539-5000.

Tens of thousands of light rail riders were forced to bundle up and be extra patient Tuesday. According to MTA officials, strong winds affected overhead wires at the Camden Yards stop just after 11:30 p.m. Monday.

One rider who was leaving an event at Baltimore's First Mariner Arena when the system went down said she had to wait for hours for a train.

MTA officials said buses were transporting affected passengers and continue to be on standby.

Amtrak trains on Wednesday will continue operating on a modified schedule along the Northeast corridor.

Officials said Acela Express and Northeast Regional service will run between Washington, D.C., and Boston, with reduced frequency.

There are also delays expected for train service in the New York City area.

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Forty years ago, one of the greatest boxing matches in history took place in an unlikely setting: the capital of the Philippines. Muhammad Ali's epic win over great rival Joe Frazier in 1975 became known as the "Thrilla in Manila."